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Kernel: Use the templated copy_to/from_user() in more places

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These ensure that the "to" and "from" pointers have the same type,
and also that we copy the correct number of bytes.
This commit is contained in:
Andreas Kling
2020-01-20 13:38:31 +01:00
parent d5426fcc88
commit e901a3695a
3 changed files with 21 additions and 21 deletions
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8
Kernel/Thread.cpp
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@@ -459,7 +459,7 @@ bool Thread::has_signal_handler(u8 signal) const
static void push_value_on_user_stack(u32* stack, u32 data)
{
*stack -= 4;
copy_to_user((u32*)*stack, &data, sizeof(u32));
copy_to_user((u32*)*stack, &data);
}
ShouldUnblockThread Thread::dispatch_signal(u8 signal)
@@ -601,11 +601,11 @@ void Thread::set_default_signal_dispositions()
m_signal_action_data[SIGWINCH].handler_or_sigaction = VirtualAddress(SIG_IGN);
}
void Thread::push_value_on_stack(u32 value)
void Thread::push_value_on_stack(uintptr_t value)
{
m_tss.esp -= 4;
u32* stack_ptr = (u32*)m_tss.esp;
copy_to_user(stack_ptr, &value, sizeof(value));
uintptr_t* stack_ptr = (uintptr_t*)m_tss.esp;
copy_to_user(stack_ptr, &value);
}
RegisterDump& Thread::get_register_dump_from_stack()